code: def do_stuff(self) -> str:
      raise NotImplementedError
  
file_path: maze/maze/test/core/wrappers/dummy_wrappers/dummy_wrappers.py
imports: from abc import abstractmethod, ABC
  from typing import Union
  import gym
  from maze.core.env.base_env import BaseEnv
  from maze.core.wrappers.wrapper import Wrapper
label_desc: Use image node_id 2 for calling the DummyWrapper obj's underlying member method code with example usage: obj.do_stuff() without return types